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hv:fix "missing for discarded return value" for memcpy_s and strcpy_s

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It will print error information inside memcpy_s if
the parameteter is invalid, the caller can not check
the return value for memcpy_s/strcpy_s/strncpy_s
code like this:
int a(void) {
return 0;
}
int b(void){
a();
}
fix as follow:
int a(void) {
return 0;
}
int b(void){
(void)a();
}

Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
This commit is contained in:
Mingqiang Chi
2018-07-05 13:32:01 +08:00
committed by wenlingz
parent 8d3847d216
commit deb44402e3
20 changed files with 63 additions and 60 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
hypervisor/common/io_request.c
View File

@@ -71,7 +71,7 @@ int32_t acrn_insert_request_wait(struct vcpu *vcpu, struct vhm_request *req)
/* ACRN insert request to VHM and inject upcall */
cur = vcpu->vcpu_id;
memcpy_s(&req_buf->req_queue[cur], sizeof(struct vhm_request),
(void)memcpy_s(&req_buf->req_queue[cur], sizeof(struct vhm_request),
req, sizeof(struct vhm_request));
/* pause vcpu, wait for VHM to handle the MMIO request.
@@ -100,50 +100,50 @@ int32_t acrn_insert_request_wait(struct vcpu *vcpu, struct vhm_request *req)
static void _get_req_info_(struct vhm_request *req, int *id, char *type,
char *state, char *dir, long *addr, long *val)
{
strcpy_s(dir, 16, "NONE");
(void)strcpy_s(dir, 16, "NONE");
*addr = *val = 0;
*id = req->client;
switch (req->type) {
case REQ_PORTIO:
strcpy_s(type, 16, "PORTIO");
(void)strcpy_s(type, 16, "PORTIO");
if (req->reqs.pio_request.direction == REQUEST_READ)
strcpy_s(dir, 16, "READ");
(void)strcpy_s(dir, 16, "READ");
else
strcpy_s(dir, 16, "WRITE");
(void)strcpy_s(dir, 16, "WRITE");
*addr = req->reqs.pio_request.address;
*val = req->reqs.pio_request.value;
break;
case REQ_MMIO:
case REQ_WP:
strcpy_s(type, 16, "MMIO/WP");
(void)strcpy_s(type, 16, "MMIO/WP");
if (req->reqs.mmio_request.direction == REQUEST_READ)
strcpy_s(dir, 16, "READ");
(void)strcpy_s(dir, 16, "READ");
else
strcpy_s(dir, 16, "WRITE");
(void)strcpy_s(dir, 16, "WRITE");
*addr = req->reqs.mmio_request.address;
*val = req->reqs.mmio_request.value;
break;
break;
default:
strcpy_s(type, 16, "UNKNOWN");
(void)strcpy_s(type, 16, "UNKNOWN");
}
switch (req->processed) {
case REQ_STATE_SUCCESS:
strcpy_s(state, 16, "SUCCESS");
(void)strcpy_s(state, 16, "SUCCESS");
break;
case REQ_STATE_PENDING:
strcpy_s(state, 16, "PENDING");
(void)strcpy_s(state, 16, "PENDING");
break;
case REQ_STATE_PROCESSING:
strcpy_s(state, 16, "PROCESS");
(void)strcpy_s(state, 16, "PROCESS");
break;
case REQ_STATE_FAILED:
strcpy_s(state, 16, "FAILED");
(void)strcpy_s(state, 16, "FAILED");
break;
default:
strcpy_s(state, 16, "UNKNOWN");
(void)strcpy_s(state, 16, "UNKNOWN");
}
}